Lawmakers in the New Jersey Assembly are considering a move to digital driver's licenses that are stored on citizen's smartphones.Legislation is under debate in the state that would enable the Motor Vehicle Commission to conduct a feasibility study of the benefits, costs and technical aspects of a transition away from offering solely physical licences."I'm hopeful that New Jersey could become the second state having an electronic driver's license," said bill co-sponsor, Assemblyman Ron dancer (R-Jackson), reported the Philly Voice. "It's very convenient. Today, we're actually more likely to leave our wallet at home than we are our (cell) phone."Such a move would make New Jersey the second state in the US to experiment with electronic licenses (MDL) after Iowa began testing a mobile driver's license (MDL) developed by biometrics firm MorphoTrust.There, 100 members of the state's Department of Transportation have opted into a 90-day pilot through an iOS application requiring strict identity verification to load the mobile licence.Supporters of a switch to mobile licences say it would enable real-time updates to a driver's address and other data such as organ donor status. However, critics have questioned privacy issues surrounding the prospect of handing law enforcement officers smartphones during vehicle checks.